Smithsonian Magic Rocks Science Kit Costume gentle tone

gentle tone

a colorful mineral composed of calcium fluoride (CaF₂)

Mary Roach visits the good deeds of cadavers over the centuries and tells the engrossing story of our bodies when we are no longer with them

safe for kids and eco-friendly

This candle holder is made from natural amethyst

Smithsonian Magic Rocks Science Kit Costume gentle toneCreate a brilliant underwater garden with this instant crystal growing kit! Place your colored stones (metal salt crystals) into the magic solution (sodium silicate dissolved in water) and watch them grow into colorful crystal formations. In six hours, repeat these steps and watch with amazement as your rocks expand into colorful stalagmite like towers. Explore the enclosed STEM content to learn about the chemical process. Each set includes an